90987 - 6/3/2019 15:00 to 6/3/2019 17:004545 - 6/3/2019 17:30 to 6/3/2019 19:3090971 - 6/3/2019 20:00 to 6/3/2019 22:00781 - 6/3/2019 22:30 to 6/4/2019 00:3090951 - 6/4/2019 1:00 to 6/4/2019 3:004645 - 6/4/2019 3:30 to 6/4/2019 5:30655 - 6/4/2019 6:00 to 6/4/2019 8:004536 - 6/4/2019 8:30 to 6/4/2019 10:30259 - 6/4/2019 11:00 to 6/4/2019 13:0090601 - 6/4/2019 13:30 to 6/4/2019 15:30TL_20190601_17 to TL_20190601_44 are ambient air samples.3 injections at (fast NOx time):
2019-06-01 08:34:35
2019-06-01 08:36:05
2019-06-01 08:37:56
I checked HOBO data.
Detlev made changes to the method yesterday (BVOC_SCAN_SIM_190531.M): the oven stays at 120°C between samples now and decreases to 35°C when the run starts (the lower we go, the better the earlier peaks such as isoprene are). Today, we increased the max temperature of the method to 260°C instead of 250°C. Note that we did not change the method’s name, still BVOC_SCAN_SIM_190531.M.
Today we updated the SIM time segments:
We also updated the peaks for each segments:
* alkanes + CFC-11: 41, 43 (alkanes) 101, 103 (CFC-11).
* isoprene: 67, 68.
* CFC-113: 101, 151.
* metacrolein + MVK: 41, 55, 70.
* aromatics (benzene, toluene, xylenes): 78, 91, 106.
* MT: 68, 93, 121, 136.
* SQT: 204, 91, 93, 119, 69.
TL_20190601_01.TL_20190601_02 is NPL.Kaixin and Jacob collected ambient air samples in 4 different bags. Catie analyzed them on the TOF.